1426231669 has 2 divisors, whose sum is σ = 1426231670. Its totient is φ = 1426231668.

The previous prime is 1426231661. The next prime is 1426231691. The reversal of 1426231669 is 9661326241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1288451025 + 137780644 = 35895^2 + 11738^2 .

It is a cyclic number.

It is not a de Polignac number, because 1426231669 - 2³ = 1426231661 is a prime.

It is a super-2 number, since 2×1426231669² = 4068273547317051122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1426231661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713115834 + 713115835.

It is an arithmetic number, because the mean of its divisors is an integer number (713115835).

Almost surely, 2^1426231669 is an apocalyptic number.

It is an amenable number.

1426231669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1426231669 is an equidigital number, since it uses as much as digits as its factorization.

1426231669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 40.

The square root of 1426231669 is about 37765.4825071784. The cubic root of 1426231669 is about 1125.6326762941.

The spelling of 1426231669 in words is "one billion, four hundred twenty-six million, two hundred thirty-one thousand, six hundred sixty-nine".